SOLUTION: One machine in a print shop can produce a certain number of pages twice as fast as another machine.Operating together, these machines can produce this number of pages in 8 minutes.

Question 183453: One machine in a print shop can produce a certain number of pages twice as fast as another machine.Operating together, these machines can produce this number of pages in 8 minutes. How long would it take each machine, working alone, to produce this number of pages?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Call the certain number of pages 1 job
Call the 1st machine's rate of printing pages
Then the 2nd machines rate is
Working together, their combined rate is
which is 1 job in 8 minutes
I can add the 2 rates to get the combined rate

This means the 1st machine, working alone,
can print the pages in 12 minutes

This means the 2nd machine, working alone,
can print the pages in 24 minutes
check answer:

Multiply both sides by

OK

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